ArcGIS Spatial Analyst

What’s New for Spatial Analyst in ArcGIS Pro 2.1 and ArcMap 10.6.

The latest version of ArcGIS is now available!  If you use the Spatial Analyst extension for performing raster analysis, read on for more details on the improvements to the capabilities and performance that have been made.

Where do I get it, and what’s changed?

To start off, use the following links to get to the download pages for ArcGIS Pro 2.1 and ArcMap 10.6.

ArcGIS Pro
ArcGIS Desktop

For a quick summary of the changes, the What’s New topics are always good to check out:

Let’s break down the details into four categories:

  1. New and updated tools for the Spatial Analyst extension in ArcMap and ArcGIS Pro.
  2. Enhanced performance potential for Spatial Analyst tools in ArcMap.
  3. A new extension for image analysis in ArcGIS Pro.
  4. New Raster Analysis tools are available for scalable Raster Analysis through ArcGIS Enterprise.


1. Spatial Analyst extension

The Spatial Analyst toolbox has four new tools, and additional parameters have been added to several existing tools.

Distance toolset:

Generalization toolset:

Hydrology toolset:
One new tool has been added to the Hydrology toolset, and two others have more parameter options available.

Interpolation toolset:

Segmentation and Classification:
Two new tools that utilize Deep Learning are available, Deep Learning Model To Ecd (Pro | ArcMap) and Export Training Data For Deep Learning (Pro | ArcMap). These tools are part of a workflow for working with Deep Learning models for classification. The deep learning classifier employs deep neural networks, which exploits the methodology of hierarchical explanatory factors. More complex features in higher levels are learned from simpler features at lower levels, based on training sample data.

For ArcMap 10.6, the following tools that were released with ArcGIS Pro 2.0 are now also available: Generate Training Samples From Seed Points (ArcMap) and Inspect Training Samples (ArcMap).


2. Parallel Processing

In ArcMap 10.6, certain Spatial Analyst tools have been updated to support Parallel Processing. By allowing multiple cores on your computer to be utilized, processing tasks on larger datasets have the potential to be completed more quickly. The list of tools that have been enhanced in this way are as follows, grouped by toolset.

Please note, parallel processing for the above tools are not yet supported in ArcGIS Pro 2.1. However, we are planning to add it soon. In the meantime, Drew Flater has written an excellent blog post covering Parallel Processing in ArcGIS Pro. From there you can see that several Spatial Analyst tools already support Parallel Processing in ArcGIS Pro (Reclassify, Weighted Overlay, Weighted Sum, Viewshed 2, Zonal Statistics, Zonal Statistics as Table).


3. Image Classification extension

In ArcGIS Pro, the new Image Analyst extension is available. It is geared towards image analysts who perform manual image visualization, advanced remote sensing, and semi-automated image processing feature extraction. The extension offers a lot of new functionality and capabilities. Some of the analytical capabilities of tools previously found only in the Spatial Analyst toolbox are now also available as part of the Image Analyst extension through the Image Analyst toolbox.


4. Raster Analysis services through a Portal

Do you use ArcGIS Enterprise and have an ArcGIS Image Server license? With the Raster Analysis Portal tools (first released for ArcGIS Pro 1.4), we have some additional raster analysis capabilities available through ArcGIS Pro, Portal and Server. With this release, we have added eleven new tools.

Following are the tools as they appear in in the Raster Analysis portal in ArcGIS Pro, with the new ones highlighted.

New Raster Analysis Portal tools for ArcGIS Pro 2.1

You can also access them via the Raster Analysis toolbox from the Portal tab in the Analysis > Tools > Geoprocessing pane.

New RA GP tools for Pro 2.1
New Raster Analysis geoprocessing tools for ArcGIS Pro 2.1

Following is list of the new tools accompanied by a brief description of each. A link to the Pro Geoprocessing tool help is included, as well as a link to the REST API help for the corresponding Service tasks.

Generalize toolset:

Hydrology toolset:

This is a suite of tools that can be used for modeling the flow of water across a surface.

Use Proximity toolset:

This toolset contains tools that help you analyze distance and proximity.

Note: The new functionality introduced is not available in the Map Viewer at this release.


Some background on Raster Analysis in ArcGIS Enterprise

In order to have access to Raster Analytics, you will need to have an ArcGIS Enterprise deployment available to you. After ArcGIS Server is installed, ArcGIS Image Server will also need to be installed and enabled. Please see the following resources for more details on configuring and using these services.



As an added bonus, and as Sara on the Enterprise team has noted in her recent blog post, the ArcGIS Enterprise documentation web help has been recently redesigned.



Above we’ve covered the important changes and improvements for raster analysis that have been introduced to the platform in ArcGIS Pro 2.1 and ArcMap 10.6 for you as a Spatial Analyst user. We’ve also touched on the functionality that is available with ArcGIS Enterprise through Portal and Server. Once you have downloaded the new versions, give the new capabilities a try. And as always, please let us know any difficulties you encounter.

About the author

Juan is a Product Engineer and Documentation Lead on the Spatial Analyst team.

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